Surveys for phytoplasmas in the Russian Federation
Surveys for ‘Candidatus Phytoplasma solani’ (EPPO A2 List) associated with bois noir disease and for Grapevine flavescence dorée phytoplasma (EPPO A2 List) were performed in Southern Russia. In 2012-2018, more than 600 samples of grapevine (Vitis vinifera) were tested by molecular analysis. This survey confirmed the presence of ‘Candidatus Phytoplasma solani’ in Crimea (in 245.44 ha in 2018). The main vector is Hyalesthes obsoletus. The presence of Grapevine flavescence dorée phytoplasma was not detected. However, the vector Scaphoideus titanus was detected (BondarenkoIda et al., 2019).
Surveys for ‘Candidatus Phytoplasma mali’ (associated with apple proliferation, EPPO A2 List), and ‘Candidatus Phytoplasma pyri’ (associated with pear decline - EPPO A2 List) were conducted in 2016-2018 in Central and Southern Russia. In total, 372 samples of pear (Pyrus communis), 355 of apple (Malus domestica), and 130 of quince (Cydonia oblonga) were analyzed by molecular tests. One sample tested positive for ‘Ca. P. pyri’; it was detected in a research station in 2017. The infected tree was uprooted, and further testing showed that the site was then pest free. All commercial orchards are considered free from both phytoplasmas (Bashkirova et al., 2019).
Bashkirova IG, Bondarenko GN, Kornev KP (2019) Study of methods for detecting quarantine phytoplasma's from the apple proliferation group on the territory of Russia. Phytopathogenic Mollicutes 9(1), 211-212.DOI:10.5958/2249-4677.2019.00106.3
BondarenkoIda G, BashkirovaIda I, Aleynikova NV, Radionovskaya YE (2019) Monitoring of ‘Candidatus Phytoplasma solani’ and “flavescence dorée” phytoplasma in south regions of the Russian Federation. Phytopathogenic Mollicutes 9(1), 209-210. DOI: 10.5958/2249-4677.2019.00105.1